173
FZUS54 KHGX 091146
CWFHGX
COASTAL WATERS FORECAST FOR TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
646 AM CDT SUN AUG 9 2026
UPPER TEXAS COASTAL WATERS FROM HIGH ISLAND TO THE MATAGORDA SHIP
CHANNEL OUT 60 NAUTICAL MILES INCLUDING GALVESTON AND MATAGORDA
BAYS.
SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST
1/3 OF THE WAVES...ALONG WITH THE OCCASIONAL HEIGHT OF THE
AVERAGE HIGHEST 10 PERCENT OF THE WAVES.
GMZ300-100030-
646 AM CDT SUN AUG 9 2026
.SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60 NM
INCLUDING GALVESTON AND MATAGORDA BAYS.
LIGHT TO OCCASIONALLY MODERATE SOUTH AND SOUTHEAST WINDS, AND 1-3
FOOT SEAS ARE EXPECTED OVER THE NEXT SEVERAL DAYS. ISOLATED TO
SCATTERED SHOWERS AND THUNDERSTORMS IS EXPECTED TO DEVELOP EACH
DAY, WITH THE BEST CHANCES OCCURRING THIS AFTERNOON. SHOWER AND
THUNDERSTORM ACTIVITY COULD BE MORE WIDESPREAD ON MONDAY. WINDS
AND SEAS MAY INCREASE SOMEWHAT BY MID TO LATE NEXT WEEK.
GMZ335-100030-
GALVESTON BAY-
646 AM CDT SUN AUG 9 2026
TODAY
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH AROUND
10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY, DIMINISHING
TO SMOOTH AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A CHANCE
OF THUNDERSTORMS. SHOWERS LIKELY, MAINLY IN THE MORNING.
MONDAY NIGHT
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
TUESDAY
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WEDNESDAY
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS
SLIGHTLY CHOPPY.
THURSDAY
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
GMZ330-100030-
MATAGORDA BAY-
646 AM CDT SUN AUG 9 2026
TODAY
SOUTHEAST WINDS AROUND 10 KNOTS, INCREASING TO 10 TO
15 KNOTS LATE. BAY WATERS SMOOTH, INCREASING TO SLIGHTLY CHOPPY
LATE. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH AROUND
10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY, DIMINISHING
TO SMOOTH AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT.
MONDAY
SOUTH WINDS AROUND 10 KNOTS, BECOMING SOUTHEAST 10 TO
15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
TUESDAY
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS. BAY WATERS SLIGHTLY CHOPPY.
WEDNESDAY
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS
SLIGHTLY CHOPPY.
THURSDAY
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
THURSDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.
GMZ350-355-100030-
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT
20 NM-COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-
646 AM CDT SUN AUG 9 2026
TODAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
MONDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING. A CHANCE OF THUNDERSTORMS.
MONDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 4 SECONDS.
TUESDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 5 SECONDS.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT
5 SECONDS.
WEDNESDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WEDNESDAY NIGHT
SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 4 FEET.
THURSDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
THURSDAY NIGHT
SOUTH WINDS 15 TO 20 KNOTS. SEAS 3 TO 4 FEET.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
GMZ370-375-100030-
WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX FROM 20 TO
60 NM-WATERS FROM HIGH ISLAND TO FREEPORT TX FROM 20 TO 60 NM-
646 AM CDT SUN AUG 9 2026
TODAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS THIS MORNING, THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS THIS AFTERNOON.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. A CHANCE OF SHOWERS. A
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
MONDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WAVE DETAIL: SOUTH 2 FEET AT 5 SECONDS.
TUESDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: SOUTH 2 FEET AT 5 SECONDS.
TUESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.
WEDNESDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS AROUND 3 FEET.
WEDNESDAY NIGHT
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
THURSDAY
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
THURSDAY NIGHT
SOUTH WINDS AROUND 15 KNOTS. SEAS 3 TO 4 FEET.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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